What is the speed limit in urban areas unless otherwise posted?

In urban areas in Alberta, the default speed limit is set at 50 km/h unless there are specific posted signs indicating a different speed limit. This regulation is designed to enhance safety by maintaining a consistent speed that is generally acceptable for residential streets and busy urban settings, helping to protect pedestrians, cyclists, and other road users. Urban areas often have more traffic, increased intersections, and a higher likelihood of encountering pedestrians, which is why the speed limit is kept at a moderate level.

The other speed options represent limits that may be suitable in different contexts or specific road conditions but are not the default for urban areas. For instance, limits of 40 km/h may be more appropriate in school zones or playground areas, while 60 km/h or 70 km/h might pertain to suburban or rural roads where there is less foot traffic. Understanding the default limit helps drivers grasp the general expectations for driving in various environments.